Abstract
Different porous carbons (MWCNT, a carbon aerogel, an activated carbon cloth and a chemically activated carbon) were evaluated as electrode material for the electrosorption of NaCl. The results obtained from the chronoamperometric experiments were correlated to the surface area and the size of the pores present in each carbon. These results indicate that all the surfaces are equivalent for the electrosorption process, demonstrating that both, mesopores and micropores, are equally effective. Nevertheless, the kinetics of the process is influenced by the pore size distribution of the carbon, although it is rather fast for all the carbons studied. The chemically activated carbon seems to be the most suitable carbon material for electrosorption of NaCl due to the combination of a high surface area and an appropriate pore size distribution.
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References
Barrett, E.P., Joyner, L.G., Halenda, P.P.: The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms. J. Am. Chem. Soc. 73, 373–380 (1951)
Dubinin, M.M.: In: Cadenhead, D.A. (ed.) Progress in Surface and Membrane Science, vol. 9. Academic Press, London (1975)
Jaroiec, M., Solovyoc, L.A.: Improvement of the Kruk-Jaroniec-Sayari method for pore size analysis of ordered silicas with cylindrical mesopores. Langmuir 22, 6757–6760 (2006)
Kruk, M., Jaroniec, M.: Determination of mesopore size distributions from argon adsorption data at 77 K. J. Phys. Chem. B 106, 4732–4739 (2002)
Li, H., Zou, L., Pan, L., Sun, Z.: Using graphene nano-flakes as electrodes to remove ferric ions by capacitive deionization. Sep. Purif. Technol. (2010). doi 10.1016/j.seppur.2010.07.003
Molina-Sabio, M., Rodríguez-Reinoso, F., Valladares, D., Zgrablich, G.: A lattice-gas model for adsorption in microporous solids. Stud. Surf. Sci. Catal. 87, 573–581 (1994)
Oren, Y.: Capacitive deionization (CDI) for desalination and water treatment-past, present and future (a review). Desalination 228, 10–29 (2008)
Pandolfo, A.G., Hollenkap, A.F.: Carbon properties and their role in supercapacitors. J. Power Sources 157, 11–27 (2006)
Pekala, R.W., Farmer, J.C., Alviso, C.T., Tran, T.D., Mayer, S.T., Miller, J.M., Dunn, B.: Carbon aerogels for electrochemical applications. J. Non-Cryst. Solids 225, 74–80 (1998)
Qu, D.Y.: Studies of the activated carbon used in double-layer supercapacitors. J. Power Sources 109, 403–411 (2002)
Rodríguez-Reinoso, F., Marsh, H., Heintz, E.: Introduction to Carbon Technologies. Universidad de Alicante, Secretaría de Publicaciones, Alicante (1997)
Ruiz, V., Blanco, C., Granda, M., Menéndez, R., Santamaría, R.: Effect of the thermal treatment of carbon-based electrodes on the electrochemical performance of supercapacitors. J. Electroanal. Chem. 618, 17–23 (2008)
Ruiz, V., Blanco, C., Raymundo-Piñero, E., Khomenko, V., Béguin, F., Santamaría, R.: Effects of thermal treatment of activated carbon on the electrochemical behaviour in supercapacitors. Electrochim. Acta 52, 4969–4973 (2007)
Seo, J.H., Jeon, H., Lee, J.K., Kim, G.Y.: Investigation on removal of hardness ions by capacitive deionization (CDI) for water softening applications. Water Res. 44, 2267–2275 (2010)
Stoeckli, H.F., Ballerini, L.: Evolution of microporosity during activation of carbon. Fuel 70, 553–557 (1991)
Villar, I., Roldán, S., Ruiz, V., Granda, M., Blanco, C., Menéndez, R., Santamaría, R.: Capacitive deionization of NaCl solutions with modified activated carbon electrodes. Energy Fuels. (2010). doi 10.1021/ef901453q
Yang, C.M., Choi, W.H., Na, B.K., Cho, B.W., Cho, W.I.: Capacitive deionization of NaCl solution with carbon aerogel-silicagel composite electrodes. Desalination 174, 125–133 (2005)
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Villar, I., Suarez-De la Calle, D.J., González, Z. et al. Carbon materials as electrodes for electrosorption of NaCl in aqueous solutions. Adsorption 17, 467–471 (2011). https://doi.org/10.1007/s10450-010-9296-0
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DOI: https://doi.org/10.1007/s10450-010-9296-0